Chemistry of inorganic compounds – Silicon or compound thereof – Binary compound
Patent
1988-11-22
1991-08-06
Chaudhuri, Olik
Chemistry of inorganic compounds
Silicon or compound thereof
Binary compound
423344, 501 88, G01B 3136
Patent
active
050376268
ABSTRACT:
A processing for producing silicon carbide whiskers in which a source of silica is mixed with a residual oil or crude petroleum and the resultant mixture is heated in a substantially nonoxidizing atmosphere at temperature sufficiently high to carbonize the residual oil or crude petroleum, thereby forming an intimate mixture of carbon and silica. The intimate mixture is then heated in a nonoxidizing atmosphere in the presence of a seeding component comprising an element selected from the group consisting of boron, the rare earths, Group IA, Group IB, Group VB, Group VIB, Group VIIB and Group VIII of the Periodic Table of Elements at temperatures sufficiently high to induce the reaction between carbon and silica to form silicon carbide. The resultant silicon carbide product will contain a relatively high concentration of silicon carbide whiskers.
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Coyle Roy T.
Ho Phillman N.
Chaudhuri Olik
Finkle Yale S.
Horton Kenneth
Union Oil Company of California
Wirzbicki Gregory F.
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